Rikstone C15 - Normal preset

Verified · 86/100 confidence. Complete schematic. All component values readable. Parameters derived directly from the circuit.

The Rikstone C15 is a small-builder two-channel EL84 amp in the Vox AC15 mould. Channel 1 runs paralleled 12AX7 triodes and a second gain stage into a cathode follower and a single Tone control; Channel 2 is an EF86 pentode with Volume, Treble and Bass. Both feed a 12AX7 long-tail phase inverter with a bypassable Master Volume, driving two cathode-biased EL84s with no negative feedback. A switch selects EZ81 valve or silicon rectification.

Tags: modern, two-channel.

Schematic-derived preset files for 16 Fractal and Line 6 modelers: Axe-Fx II/XL/XL+, Axe-Fx III, FM3, FM9, and the full Helix family (Floor, LT, Rack, HX Stomp, HX Stomp XL, Native).

Gridleak extracts amp parameters from original circuit schematics using AI vision — component values, gain staging, tone stack topology, tube types — then generates native preset files for every supported modeler. Every extraction is scored 0–100 and the score is published.